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science Flashcards

1
Q

what happens to an image if i hold a concave lens over it

A

it gets smaller (caves in)

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2
Q

what kind of EMS can some animals and insects see that we cannot

A

infrared

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3
Q

If I want to change how high or low a note sounds, what property of the wave should I change?

A

frequency

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4
Q

A disturbance that transfers energy from one place to another, not matter

A

Wave

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5
Q

Any wave that requires a medium is called a _____ wave

A

mechanical

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6
Q

what happens to an image if i hold a convex lens over it

A

it gets larger

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7
Q

If i print with yellow and cyan ink, what color will I see

A

green

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8
Q

sound waves are an example of which kind of waves

A

compressional

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9
Q

what kind of EMS is not considered dangerous

A

microwaves

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10
Q

If I mix green and red light, what color will I see

A

yellow

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11
Q

If i print with magenta and cyan ink, what color will I see

A

blue

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12
Q

what do we measure frequency in

A

hertz

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13
Q

sound waves are an example of which kind of wave

A

mechanical

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14
Q

If I want to increase the volume of my music, what part of the wave must I change?

A

amplitude

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15
Q

When a wave bounces off of a surface at equal angles, we call this…

A

reflection

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16
Q

When light bends as it goes from one transparent medium to another, we call this

A

refraction

17
Q

Wave energy causes matter to move at 90 degree angles to the direction of the wave.

A

transverse wave

18
Q

This type of wave does not need a medium to travel through.

A

electromagnetic

19
Q

This wave characteristic affects the pitch (how high or deep a sound is).

A

frequency

20
Q

The material that a wave passes through; a substance needed for a mechanical wave to travel. 3 examples: gas, solid, liquid

A

medium

21
Q

When I change the thickness or the material of the string, what part of the wave have I changed

A

medium

22
Q

What happens to a sound wave when the frequency of the wave is changed?

A

It affects the pitch of the sound wave

23
Q

What happens to a sound wave when the amplitude of the wave is changed?

A

The energy also increases which results in a louder sound

24
Q

What part of the wave needs to be changed to change the brightness level of light?

A

amplitude

25
Q

What part of the wave needs to be changed to change the color of light?

A

wavelength

26
Q

Why does light refract?

A

When light enters a different type of medium (gas to a liquid), light slows down and bends

27
Q

What does an image look like through a concave MIRROR (inside of the spoon)?

A

the image is upside down

28
Q

What does an image look like through a convex MIRROR (outside of the spoon)?

A

The image looks larger and right side up

29
Q

If a yellow light shines on a blue paper, what color does it appear to be and why?

A

Black, yellow absorbs blue light leaving no color.

30
Q

If a blue light shines on a shirt that absorbs blue, what color does the shirt appear?

A

black

31
Q

If a red light shines on a shirt that absorbs blue, what color does the shirt appear?

A

red

32
Q

If a magenta light shines on a shirt that absorbs blue, what color does the shirt appear?

A

red

33
Q

If a shirt absorbs blue light, what color light(s) get reflected?

A

Yellow (red & green)

34
Q

If a light appears white, what colors of light are actually shining?

A

Red green blue (RGB)

35
Q

What are the secondary colors of LIGHT?

A

magenta, yellow, cyan

36
Q

What color of light do you get when you add red, blue, and green light?

A

white

37
Q

What is subtractive color?

A

A color that results from wavelengths being absorbed

38
Q

What is the definition of additive color?

A

Addictive colors deal with actual light. When you add all the colors of light, you get white light

39
Q
A

Geography (4 decks)

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